Finishing and polishing machine



June 7, 1938. c LIPPOLD 1 2,119,954

FINISHING AND POLISHING MACHINE Filed July 29, 1955 4 Sheets-Sheet 1 June 7, c LIEPQLD FINISHING AND POLISHING MACHINE Filed July 29, 1935 4 Sheets-Sheet 2 INVENT'OR a mq ATTORNEYS June 7,1938. c J LIPPOLD 2,119,954

FINISHING AND POLISHING MACHINE Filed July 29, 1935 4 Sheets-Sheet 4 g /5 INVENTOP.

ll ,o I 0 0000900 ATTORNEYS Patented June 7, 1938 UNITED STATES guessi- PATENT OFFlCE Carl J. Lippold, Wanwatosa, Wis, assignor to J. M. Nash Company, Milwaukee, Wis., a corporation of Wisconsin Application July 29, 1935, Serial No. 33,647

45 Claims.

My invention relates to improvements in finishing and polishing machines of that type in which pieces of work in rotation are carried by a revolving turret or drum successively into contact with polishing, bufllng, or other finishing devices occupying positions which are predetermined in correspondence with the requirements of the individual pieces of work to be finished during a given setting of the machine.

Heretofore each polishing or finishing element or member required independent setting and locking, and as such members are often very numerous the setting up operation consumed considerable time and the desired degree of accuracy was not always attained. 7

Primary objects of this invention are to provide means whereby one of the pieces of work may be utilized to simultaneously position all finishing and polishing members of any given lineal series and such parts associated with said members as require corresponding positioning adjustment, and whereby all of such members may be simultaneously locked in their proper positions while they are being held in such positions by the work.

It is my object to provide means for utilizing a piece of work to mechanically set up a machine of the described class by adjusting such piece of Work in a controlling position with reference to the members requiring adjustment for such a setting up operation.

It is also my object to provide means whereby the same piece of work may be successively advanced from one controlling position to another to successively set up different lineal series of devices for holding, sanding, or buifing members in proper relation to work subsequently carried by a revolving turret from one such lineal series to another.

A further object is to provide means whereby all of the adjustable members in any such lineal series may be simultaneously locked while permitting independent readjustments of any member in the series in correspondence with special requirements for increased or diminished pressure of the finishing or polishing device upon work.

A further object is to provide means for obtaining pressure variations common to all members in any given line of working members or elements, whereby such variations may be accomplished simultaneously.

A further object is to provide means whereby lines of finishing and polishing elements and associated parts may be bodily adjusted to increase or diminish the curvature of the are along which the various lines of finishing and polishing members are supported, whereby the machine may be adapted for turrets of different diameters, and for work pieces of differing diameters.

Further objects are to provide improved sup- 5 porting devices for sanding and buffing members; to provide means whereby holders for the yielding back members associated with such sanding or buffing members may be lineally adjusted in any given series without requiring readjustment 10 of associated tensioning means; and to provide controls at one end of the machine, whereby the various members can be locked, released, or readjusted for any given line instantly and simultaneously; and to provide means whereby each member in any series may be independently pivoted to a common support and adjusted either in common or individually.

In the drawings:

Figure 1 is an end elevation of the machine embodying my invention, with a portion of one of the arcuate end walls or standards of the brush supporting frame partially broken away to disclose the mountings for the brushes employed for tensioning the strip of sanding paper or buffing material.

Figure 2 is a detail View of one of the standards, showing means for effecting bodily adjustments, either forwardly and backwardly, or laterally, and also showing means whereby one or more upper series of brush holders may be swung forwardly and backwardly independently of the lower series.

Figure 3 is a fragmentary front elevation showing one end of the frame with a few of the brush holders, and also illustrating the adjusting levers and locking controls mounted upon the outer face of one of the end standards or frame member supports.

Figure 4 is a fragmentary perspective view of one of the brush mountings, a portion of the brush being illustrated.

Figure 5 is a detail View of a pair of brush holders and their individual locking means.

Figure 6 is a plan View of the locking means shown in Figure 5, associated with a fragment of the supporting rod.

Figure 7 is a detail view of a modified brush holder support.

Figure 8 is a fragmentary front elevation of the modification shown in Figure 7.

Figure 9 is a rear elevation of the same.

Figure 10 is a fragmentary end elevation showing the upper end of a modified form of standard.

Figure 11 is a View similar to Figure 1 showing a further modification, the standard being partially broken away.

Figure 12 is a plan view, partly in horizontal section, drawn to line l2l2 of Figure 11.

'Figure 13 is a fragmentary view, of paired divider plates, associated shown in cross section.

Figure 14 is a detail view'of an independently adjustable eccentric support for. a brush holder.

Like parts are identified by the same reference characters throughout the several views.

In the following description the terms polishing material and polishing strips ployed to define strips or pieces of bufiing material of any description. The term brushes will be "employed to designate any yielding backing material for holding the polishabrasive or 7 ing material or members in contact with the work are'arra'nged inmultiple lineal series at dilferand in conformity to the contour of the work. The term work holding carrier will be employed to designate any means for presenting the work to the polishing strips, the work being ordinarily rotated about. its own axis while it is being presented in order that all surfaces of the periphery may be polished.

The form of the carrier, the means for actuating it, and the means for rotating the work are I not material to the subject matter of the invention herein disclosed, and it may be assumed that these portions of the machine will conform generally to machines of the type disclosed in expired patent-to A. H. Matteson, dated November 9, 1915, and' numbered 1,159,696. Therefore, detailed illustration and description of the work carrier and work rotating means are deemed unnecessary.

In Figure 1 the work carrier is illustrated conventionally, and'pieces of work are indicated at A as they are'being conveyed by the carrier into contact with strips of polishing material 22 which depend from their supports as hereinafter described, and are held against the work bybundles of broom corn, which constitute resiliently yielding backings or brushes 23.

The brushes 23 and the strips of polishing material yieldingly pressed by them against the work ent levels, five such lineal series being illustrated in Figures 1 and 3. Brushes 23 are narrow, and the strips 22 of polishing material are correspondingly narrow, and preferably sub-divided in such a manner that the pressure of the brushes will force the polishing material into conformity with the contour of the work. Arcuate end standards are employed to support the polishing material and the brushes with portions of the polishing material in the path of the work as it isbeing conveyed by the work carrier, and in these particulars also my improved machine may conform to standard practice when my invention is embodied in machines of the type disclosed in said former patent toMatteson.

My invention relates more particularly to the brush mountings and the means for supporting and adjusting them and securing the polishing strips or materials thereto, and these features will now be described.

I have improved the arcuate standards or end pieces of the supports in order that they may be adapted for work of differing diameters, The lower portions 25 of the standards have base flanges 2! which serve as cross slides upon longitudinally adjustable slides 28 relatively fixed base 29.. The flanges 21 are provided with slots 39 through which bolts may pass to secure the flanges 21- to the slide 28, Slides polishing strips being will be em mounted upon the.

These standards being arcuate, an additional adjustment of their ends is desirable in order to permit the upper end portions to swing downwardly toward the work carrier, where a rotary carrier of'the turrettype is employed. For this purpose the upper end of the standard comprises a swinging section having a portion 35 offset at its lower end (Figure 3) and pivoted to the;

lower sectionat 31. A set screw 38 extends through a slot 39 in the section 35 and clamps that section'to the lower section 25 in the rear of the pivot 37. The slot 39 is of sufiicientlength to allow the section 35 to be swung from its full line position in Figure 2 to the dotted line position when the'lower section 25 has been adjusted from its full line position to the dotted line position in that view.

Preferably, brackets 40 on the standard section 25 will be connected withbrackets 4| on the standard section 35 by tension springs 42, whereby these springs tend to draw the upper sections 35 of the standards to their full line positions in Figure 2, or at least to counterbalance the weight of these overhanging sections in such a manner that their adjustment upon the pivotal axes 31 may be readily made.

The end standards are connected by rock shafts 45, each of which supports. one lineal series of brush holders. The brush holders 46 of each series are pivotally attached to a longitudinally extending frame composed of bars 41, 48, and 49, which are connected at intervals by divider plates 50, preferably welded to the'bars 41, 4 8 and 49 to form a substantially rigid frame, an enlarged fragment of which is illustrated in Figure 4. Each of' these plates 50 has an upwardly extending portion 5| which is preferably tapered and apertured to receive the associated shaft to which it is secured.

A brush holder pivot rod 53 extends longitu dinallythrough apertures inthe plates near their inner margins, and each brush holder 46 is provided with a hook-shaped member 55 which engages over the pivot rod 53 to support the brush holder for pivotal movement thereon.

. Underneath the pivot shaft 53 a push rod 56 bears upon the lower portion of the brush holder and tends to swing it outwardly in the direction of the work carrier in a pivotally swinging movement upon the rod 53. This push rod 56 extends through apertures in the frame bars 48 and Q9 and has a T-shaped head 58 for contact with the brush holder. The push rods are connected in pairs by links 59 which prevent them from rotating and hold the cross heads 58 in horizontal position parallel with the rod 53 and the asso-;

ciated face of the brush holder. 7

' A compression spring 57 between the frame bar 48 and the head piece 58 urges the push rod in the direction of the brush holder. But locking devices are employed to hold the push rod in de sired positions of adjustment, whereby the position of thebrush holder with reference to the pivot rod 53 maybe predetermined.

The means for locking the push rods maybe similar to those employed for ordinary transom locking purposes. Pairs of plates 60 and BI are pivoted to the frame bar 41 and apertured to receive the push rod 56. A compression spring 63, coiled upon the rod 56 between the plates, tends to separate them and cause them to grip the push rods, thereby locking them against sliding movement in the frame bars 48 and 49. However, these rods 56 may be released by pressing the lower ends of the plates 6!! and El toward each other in opposition to the spring 63. To accomplish this a pair of rock shafts G4 and &5 are journaled in the frame plates 58 and intergeared as indicated at 56. These rods are provided with wing flanges 6'5. The rods being intergeared, an oscillation of one of them will cause the other to oscillate in the opposite direction, and their wing flanges 6! will press together all of the looking plates 59 and 6! in that particular lineal series.

Where elongated strips of polishing material are employed this material may be supported in rolls 69 or upon spools carried by the brackets :18 and %i. The portion to be used for polishing purposes will be drawn from the roll and extended over the upper frame plate 41 and over the brush holder 45 and the associated brush 23. When the portion resting upon the brush 23 becomes impaired with continued use, it is torn away and an additional unused portion drawn over the brush from the roll.

Each of these strips is clamped to its associated frame bar 4's by an eccentric clamping member which has a curved bearing surface snugly fitted to the rock shaft 45, whereby it may be moved into and out of clamping relation to the polishing strip by oscillating it manually on shaft 45. This clamping member is provided with an upwardly projecting handle H, whereby it may be manually rotated upon the shaft 45 when any feeding adjustment of the polishing strip is desired.

The brushes 23 may be mounted in the sockets of the brush holder 46 and secured therein in any ordinary manner. Their hook-shaped supporting members 55 may be readily removed from the pivot shaft 53 whenever a brush holder and brush requires replacement. A large number of these brush holders are employed in each lineal series associated with one of the shafts 45, and inasmuch as the frame plates 50 and frame bars 47, Q3 and 49 are rigidly connected with the shaft 45, a simultaneous tilting movement of all the brush holders in the series may be accomplished by oscillating the shaft 55 without changing the relative positions of the push rods 56 and of the brush holders with reference to the frame. Also, such tilting adjustments accomplished by oscillating the rod is will have no effect upon the clamping members H3, and therefore the polishing strips or materials will be undisturbed relatively to the brush holders and the associated frame.

However, whenever a manual adjustment is needed any clamping member H3 may be manually sed by means of its handle H. Also, any brush holder may be individually swung upon its pivot shaft 53 by manually grasping and pressing together the locking plates Eli and 6!, whereupon. the brush holder may be manually swung to the desired position, and the looking plates released and permitted to again lock the push rod.

One of the end standards is provided with adjusting levers and locking devices to be employed for effecting a simultaneous adjustment of all brush holders associated with a single rock shaft The means for effecting such simultaneous adjustments will now be described.

Each rock shaft 45 is extended through one of the standards and provided with an arm 80 havin an elbowed extension 8| provided with a knob or handle 82. The elbowed portion is provided with an arcuate slot 83, and a boss 84 (Figure 3) projects from the standard and forms a bearing for the elbowed portion of the arm. A bolt 85 extends from this boss through the slot 83 and receives a clamping nut 81, which has a hand wheel or knob 88, whereby it may be manually adjusted upon the screw 85 to securely clamp the arm 83! in a desired position of adjustment. By releasing this clamping nut 8! the arm 80 may be manually swung to oscillate the shaft 45 and thus simultaneously tilt the associated frame and aii brush holders carried thereby.

In order that the push rod locking plates 60 and 6! associated with any given frame or lineal series may be simultaneously locked or released, the rods 65 are extended through arcuate slots 90 in the standard, and preferably through apertures in the arms 88, their outer ends being provided with actuating arms or levers 9|, whereby these look controlling rods 55 may be oscillated and their motion transmitted through the gear members 6%; to the associated release rods 64.

Coiled tension springs 92 on the projecting ends of the rods 55 are employed to normally urge the arms Hi to inoperative position, where they are thus held except when manually swung to releasing position.

Referring to Figures 5 and 6, it will be seen that the brush holders are longitudinally adjustable along their pivot rods 53, whereby any desired spacing of the brush holders with reference to each other becomes possible, and whereby brush holders of differing widths may be substituted. The cross heads or T-shaped ends 58 of the push rods are long enough to maintain pressure contact with the associated brush holder under any contemplated adjustment of the brush holder along the rod 53. When adjusted in their desired positions the brush holders may be locked to the rod 53 by the expedient disclosed in Figures 5 and 6, now to be described.

The hook-shaped portions of the brush holder members 55 may be forked, and a hook-shaped clip 95 may embrace the rod 53 between the forked arms. This clip 95 has a horizontally swinging shoe 95 pivoted to the clip at 9i and provided with a handle portion 98, whereby it may be swung underneath the rod 53 to draw the hook-shaped member 95 downwardly upon the rod with sufficient'binding pressure to prevent the brush holder from shifting along said rod accidentally.

In Figures 7 to 10, inclusive, a modification is illustrated, in which corresponding parts bear the same reference numerals as in Figures 1 to 6, inclusive, with the letter a added by way of distinction.

But in place of the brush holding frames composed of the bars 4?, 48, 49 and the divider plates 5! this -modified construction discloses a channel bar Hi5 which is suspended between the end standards 25a by end trunnions Hi6 secured within the end portions of the channel bar by rectangular blocks i i'i welded to the central web and one side wall of the channel bar. These end trunnions I06 project through tubular bosses H18 ;screw'85a extends and receives a locking nut to shaped members 55a from a supporting rod 53a,

which will be secured at intervals to bosses II4 projecting from one of the side walls of the channel bar. Push rods 56a. extend through apertures in the side walls or flanges of the channel bar and have cross heads 58a to bear against the brush holders under pressure exerted by springs 51a which are interposed between the cross heads and the adjacent side wall of the channel bar.

These push rods with their associated locking plates 66a and Ma, and their separating springs 63a, are similar to the corresponding locking mechanism for the structure shown in Figures 1 to 6, inclusive. But the means disclosed in Figures 7 to 10 for unlocking the push rods is quite difierent from that heretofore described with reference to Figures 1 to 6. A pair of thin bars H5 and H6 extend along the edge margins of the side walls of the channel bar frame I05 and are connected with each other at suitable intervals by links III, the end portions of which are pivoted to the respective bars, and the central portions of which are pivotedto pivot posts IIB by headed screws II9 which serve as pivot pins supporting the links and the plates'II5 and H6.

The plates are adapted to serve as squeeze plates to press the locking plates 60a and 6Ia into unlocking position when the links are oscillated upon their pivots H9. This swinging movement -may be derived from a bell crank I20 mounted upon one of the actuating arms 80a. The short arm of the bell crank is connected by a link I2I with the plate H6 to move the latter longitudinally, whereupon its motion will be transmitted In the modification disclosed in Figures 11, 12,.

i3 and-1d the brush holders are associated for adjusting purposes in both lineal and arcuate series, whereby those of several linear series at different levels may be simultaneously adjusted from a single piece of work. In the modificationillustrated, it is not necessary that the piece of work, should be mounted on the rotary turret or carrier. It may be supported in a centered position upon the pivoted arms I76, and these arms may then be lifted to push the work into actuating relation to a set of gauge fingers, each connected to position one of the brush holders. This specially mounted piece of work'may thus be utilized to mechanically position all. associated brush holders simultaneously.

Also; in the modification now to be described,

to the plate H through the associated links III.

the arcuate end standards 2% may be pivoted at I21 to obliquely mounted base members 2112 adapted for longitudinal oscillation'along the oblique face of a base member 292). The base flanges 211) are secured to the slide 282) by bolts 3Ib which extend through slots in the base flanges, as above described with reference'to Figure 1. But owing to the oblique position, a slight tilting movement of the standards 25?), coupled with;a sliding. adjustmentof the base Z'Eb will be adequate for a common-adjustment of all brushes when setting up this machine for operation upon work of diiferent size or diameter. The;

lower end of standard 2% is slotted and a clamping bolt I28 locks the standard in its various po-! 7' sitions of tilting adjustment.

In place of the brush holder frames heretofore described, I have shown in Figures 11 and 12 arcuate divider plates 59b which are supported from the end standards by oscillatory shafts or rods I38 which are journaled in their respective end standards b. These shafts extend through one of the standards and are each provided with a handle or hand wheel I3i. extended end of each shaft I30 will also be threaded to receive a lock nut I32, whereby, when the shaft i3!) is oscillated to a desired position it may be locked by turning the nut I32 into clamping relation with the associated standard.

Between the standards the shafts I 33 may be 12), which support the brush holder rod 531), whereby the rod 531) may be shifted forwardly andbackwardly to vary the pitchof the brushes.

The strips of polishing material 221) may ex- A portion of the provided with an eccentric I35 encircled by strap I36 having projecting arms I3? (Figures 11 and tend between feed rollers its and MI journaled in the divider plates for'rotation when replacing worn polishingmaterial by additional material drawn from the rolls 6%. The shafts I4I- may be extended through one of the end standards, as shown in Figure 12, and provided with an operating knob I43 and a look nut I44 similar to the lock nut I32.

In place of the push rods 56 shown in Figure 1, levers I41, one for each brush holder, may

be pivotally'mounted upon a longitudinally extending pivot red I 48, this pivot rod extending through an intermediate portion of the lever..

One arm of the lever has a rounded nose I49 which bears against the brush holder below the brush holder pivot rod 531), whereby to angularly position the brush. The brush holder hook b preferably has an extension 5 50 which bears uponthe upper surface of the nose portion M9of'the lever, whereby upward movement of thisarm of the lever will positivelyswing the brush 23b downwardly. Movement of the lever in the op-' posite direction will of course tend to swing'the brush upwardly. The outer arms of the-levers I41 are connected in an arcuate series by links I55, whereby movement of anyone lever is transmitted toeach of the others in this arcuate series,

thereby adjusting all of the associated brushes simultaneously in the same direction.

This adjustment 'of the levers I41 in each ar- 2 cuate series may be simultaneously accomplished by mounting a set of controlling levers upon a pivot rod I60. The short arms IEEI of these con trolling levers are slotted and receive the pivot pins I 62 whichconnect the links I55 with the outwardly projecting arm of one of the levers.

I41, whereby movement of the arm I6I of the controlling lever will be transmitted through the pivot pin I52 to the lever I41 upon which it is mounted, and through the links I55 to the other levers M1 in the same arcuate series.

The controlling levers are provided with upwardly extending arms I65 which carry contour testing or gauge fingers I56 adapted to bear upon a piece of work A which has been centered between supporting arms I15 secured to an oscillatory shaft or rod I'll. As shown in Figure 12, these controlling levers with their contour testing gauge fingers IBIS are arranged in a longitudinally extending series upon the pivot rod I69 and are adapted to adjust associated brush holders in conformity with the contour of the particular portion of the work with which any given gauge finger I66 may contact. Levers i555 may be locked on the pivot rod Hit by means of clamping nut I61, thereby locking all the levers I41 in their adjusted position.

Therefore, in setting up a machine of the type disclosed in Figures 11 and 12, a piece of work may be centered between the supporting arms I15 and swung upwardly into contact with the gauge fingers I56, thereby adjusting all the brush holders in conformity with the requirements of the work. Like adjustments will be made for each brush holder in any given arcuate series, whereas different adjustments will be made in each lineal series in correspondence with the diameter of the Work against which the respective gauge fingers I55 may bear.

In machines of the type illustrated in the drawings, the polishing materials delivered from successive rolls 69 or 6% will ordinarily be of different grades, the upper series of rolls 6% having the strips surfaced with a comparatively coarse abrasive material for rough polishing or sanding operations. The rolls in successive series with which the work comes in contact will have the strips surfaced with a finer abrasive, and the strips drawn from the last series of rolls may be merely buffing strips or strips of fabric uncoated with granular material.

Therefore, inasmuch as the adjustments of the brush holders as above described are made for the purpose of determining the resistance which the brushes exert against the rear side of the polishing materials under pressure of the work upon the abrading side, it will be apparent that the brush holder adjusting means disclosed in Figures 11 and 12 will have the same effect upon all brushes and tend toprovide the same resistance at each polishing station represented by any lineal series of brushes if the oscillatory adjustment of the shafts I30 and their eccentric flanges I35 should be the same. But inasmuch as these shafts may be separately adjusted rotatively, each shaft I30 may be independently oscillated to utilize the eccentric flange I35 to project or retract the pivot rods 53b and the upper portions of the brush holders, thereby tilting the brush holders in a pivotal movement over the extremities I49 of the levers I 41. In this manner one series of brushes may be relatively advanced or retracted to vary the resistance which the brushes exert to the pressure of work conveyed by the carrier along the associated polishing strips.

With some classes of work it may be desirable to provide for individual adjustments of the brush holders independently of the setting of the levers I41 and independently of the oscillatory adjustment of the shaft ISII. This may be accomplished by the construction shown in Figure 14, wherein individual collars are mounted upon the shaft I30 and secured thereto-by set screws I15. These collars have eccentric flanges I350 encircled by straps I360 connected with the arms I310. These arms I310 have studs 53c with which the brush holder hooks 550 may be engaged. Otherwise the construction of the ma-- chine may be the same as that shown in Figures 11 and 12, or if desired, it may be the same as that disclosed in Figures 1 to 6, inclusive, if these eccentrically flanged collars are mounted upon the rock shafts 45 disclosed in those views. The individual adjustments made possible by the use of separate collars I350, as shown in Figure 14, and separate pivot studs to which the brush holders are hooked, as shown in'that view, may be utilized to adapt these machines for special duty, in which a variation in polishing pressure at one or more stages in the polishing operation becomes desirable.

In Figures 12 and 13 it will be observed that the links I55 are arranged in pairs for mutual reenforcement and to allow polishing strips 221) of substantial width to occupy the space between them. These links may be offset from each other, as indicated at I11 (Fig. 13), to permit of their connection with the uniformly spaced brush holder adjusting levers I41. This also facilitates access from the rear side to the levers I41 and to the eccentric members I350 when the latter are made individually adjustable.

From the foregoing description it will be understood that in the form of construction disclosed in Figures 1 to 6 the means for holding the polishing strips to the work under the desired pressure in any given lineal series may be simultaneously adjusted by a specimen of the work mounted upon the carrier and conveyed thereby into contact with the polishing strips while all the brushes in the series are in an advanced position under pressure of the unlocked push rods 56.

position to hold its associated polishing material against the work. Thereupon the shafts 64 and 65 are oscillated to release the locking plates 60 and SI and fix the push rods in the positions to which they have been adjusted, after which the resilience of the material composing the brushes will be relied upon to provide the desired pressure of the polishing material upon the work as successive piecesof work are advanced by the carrier into contact with such material.

After adjusting one set of brushes in the described manner the initial piece of work moves to the next set, whereupon the adjusting operation is repeated and the various push rods in the second set or series are locked in their proper positions. This is continued until the push rods in each series have been so looked, after which the machine is ready for continued operation until the polishing strips have become sufficiently worn to require removal of the worn portions and their replacement by advancing additional portions of the polishing strips, either by releasing their clamping devices 10 (Figures 1 to 6), or by rotating the feed rollers I41 (Figures 11 and 12).

The nature of the work to be performed may,

in some cases at least, determine which embodiapplying means for said polishing materials,

struction as a preferred form. "Also, nothin the particular embodiments illustrated.

stitutions' may be appropriately made. ,I-claimz f 1 1 f1. -In a machine of the described class, the

combination of series of polishing materials, ad-

justably mounted resiliently yielding pressure means for utilizing the work to effect setting up adjustments of the polishing materials and their associated pressure applying means in any given series,and' locking devices common to the polishing materials and their associated pressure applying means of each series for fixing the ad- I justme'nts so predetermined.

2.;In a machine'of thedescribed class, plural series of polishing members in combination with so predetermined.

f independently operable resilientlyyielding pres 7 sure applying means for'difierent portions of said polishing members, means for utilizing the work to eifect setting upradjustments of the various pressure applying means in accordance withthe contour of the work, and locking devices operable in-common from, one end of the machine for fixing the adjustments of the pressure applying means after predetermination of such adjustments, by the work.

3. In a machine of thedescribed class, a lin-ej eally' arranged series of polishing devices in com.- bination with resilientlyyielding pressure apply: ing means for ealch'polishing device, means for utilizing the work to effect setting up adjustments of all of the polishing devices and of their associated pressure applying means in the series, anda locking device common to all the polishing devices of the series for fixing the adjustments 7 4. In a machine of the described class, a lineally arranged series of polishing devices in combination with separately adjustable pressure 1 applying means for each polishing device, means for utilizing the work to effect setting up adjust;-

ments of all of the polishing devices and of their associated pressure applying means in the series, and a locking device, common to all the polishing devices of theseries'fo-r fixing the adjustments so predetermined,

5. In a machine of the, described class, a lineally arranged seriesof polishing devices in combination with separatelyadjustable' device posi- V 11tioning means for each polishing device, means foriutilizing the work to effect setting up adjust ments of all of the polishing devices and of their associated positioning means, and a locking device common to all the polishing devices of the series for fixing the adjustments so predetermined. V I

6. In amachine of the described class, multiplelineally arranged series of polishing devices in combination with resiliently yielding pressure applyingmeans for eachpolishing device, linkage connecting polishing devices in groupstrans- Iverse tosaid series, and means for utilizing the 'work to effect setting up adjustments of all of the polishing devices and of their associatedpressure applying means in any given group with" reference tothe contour of the portion of the 7 work to be polished by the devices insuch group. 7. In, a machine, of the described class, the

combination witha lineal series of polishing devices, of an oscillatory frame to which said g in the specification or in the appended claims is" intended to limit the scope 'of my invention to The modified features may be utilized in the structures shown in Figuresfl to 6 insofar assube polishing devices maybe secured, adjustable means mounted on the frame for resiliently holding the polishing devices for yielding pressure" frame, and means for simultaneously locking all the brush holdertilting devices when their associated brushes have been tilted to their desired positions. i

9. In a machine of the described class, the.

combination of a brush holder frame supported for bodily oscillatorymovement about a longitudinally extending axis, a set of brush holders individually pivoted to the frame, a set of brush holder tilting devices, each adapted to apply pressure to one of the brush holders to swing the same upon its pivotal connection with the frame, and means for simultaneously locking all the brush holder tilting devices when their associated brushes have been tilted to their desired positions,jsaid.tilting devices being yieldingly'mounted and adapted to be adjusted to their proper positions by pressure of the work exerted inabrush tilting direction'in opposition to said tilting devices.-

10. In a machine of the described class the combination with a pivoted support for polishing material, of the combination with the polishing member, of a yielding backing for regulating the pressure of the polishing member upon the work, an adjustable support pivotally connected with the yielding backing, aresiliently urged slide adapted to urge said resilient backing in one direction of oscillation about its pivotalsupport, means for utilizing work to move said backing in the opposite direction, and means for locking 7 the slide after the backing has been positioned by the work;

11. In a machine of the described classthe combination of a pivoted holder for supporting polishing ,material in the path of moving pieces of work, acarrier for moving pieces of work in contact with said polishing material, a spring- I actuated slide movable against said holder at one side of its axis of pivotal movement for urg-.,

ing the polishing material in one direction of swinging movement about said pivotal axis, 1

means for utilizing a piece of work on the carrier to urge the polishing material in an opposite direction, and meansfor locking the slide after the polishing material has been positioned by the work.

12. In a machine of the described class the combination With means for pivotally supporting polishing material, of a spring-actuated slide for urging the polishing'material in one direction of rotation about said pivotal axis, means'for utilizing a moving piece of work to urge the polishing material in an opposite direction, and means for lockingthe slide after the polishing material has been positioned by the work, said. polishing material being pivotally supported independently of said slide and provided with a yielding backing,

the resistance of which is determined by the pres-f sure of the work and the counter-pressure of said slide when positioning the polishing material.

13. In a machine of the described class, the combination with a lineal series of independently adjustable devices for holding polishing material yieldingly in position for contact with rotating pieces of work, of means for simultaneously oscillating all of the devices in said lineal series from one end of the series, and means common to all of said devices for locking them in the various positions to which they may be simultaneously adjusted.

14. In a machine of the described class, the combination with a lineal series of devices for holding polishing material yieldingly in position for contact with rotating pieces of work, of means for simultaneously oscillating all of the devices in said lineal series from one end thereof, means common to all of said devices for locking them in the various positions to which they may be simultaneously adjusted, and means for effecting independent supplemental adjustments of the individual polishing devices.

15. In a machine of the described class, the combination with an elongated oscillatory frame, of means for locking said frame in various positions of oscillatory adjustment, a'lineal series of polishing devices associated with said frame and having working portions supported thereby, resilient backings for the working portions of the polishing devices, means for adjusting said backings with respect to the frame and associated locking devices for securing them to the frame in various positions of adjustment, together with means for automatically urging said resilient backings in one direction, means for utilizing the work to urge them in the other direction, and means for preventing operation of said automatic devices after the backings have been adjusted by the work in positions predetermined by the contour of the work.

16. In a machine of the described class, the combination with end standards and oscillatory work holders supported thereby, of an operating lever pivoted to one of the standards and operatively connected with the work holders to oscillate the latter, means for locking the operating lever to the standard, a set of automatic work holder adjusting devices, and an auxiliary lever associated with the first mentioned lever and operatively connected to lock the adjusting devices in positions predetermined by the contour of the work.

17. In a machine of the described class, the combination with a supporting frame, of a series of individual yielding supports for polishing material movably connected with said frame, a set of spring-actuated push rods each adapted to urge said resilient yielding supports in one direction,

and means for locking the push rods after the po-' sition of the supports has been predetermined in accordance with the requirements of the work.

18. In a machine of the described class, the combination with end standards, of an oscillatory support for polishing material mounted between said standards and provided with means cooperative with the work for positioning the polishing material in positions predetermined by the contour of the work, a lever associated with one of the standards and operatively connected foradjusting said support in various positions of oscillatory adjustment, means for lacking the lever, and an auxiliary lever carried by the first mentioned lever and provided with associated locking devices for securing each cooperative means fixedly with reference to the frame after the individual polishing materials have been positioned for polishing operations.

19. In a machine of the described class, the combination with a supporting oscillatory frame, of a lineal series of mountings for holding strips of polishing material against rotary pieces of work, hook-shaped members pivotally connecting each mounting with the frame for individual oscillation with reference thereto, means for utilizing pieces of work to predetermine the positions of the individual mountings, a locking lever at the end of the frame for securing it in various positions of oscillatory adjustment, and associated locking devices for securing the individual mountings in various positions of pivotal adjustment with reference to the frame.

20. In a machine of the described class, the combination with a supporting oscillatory frame, of a lineal series of mountings for holding strips of polishing material against rotary pieces of work, hook-shaped members pivotally connecting each mounting with the frame for individual oscillation with reference thereto, means for utilizing pieces of work to predetermine the positions of the individual mountings, a locking lever at the end of the frame for securing it in various positions of oscillatory adjustment, and associated locking devices for securing the individual mountings in various positions of pivotal adjustment with reference to the frame, said individual mountings including portions adapted to hold polishing material against the work in yielding pressure relation thereto.

21; In a machine of the described class, a brush holder actuating pushrod provided with a cross head for engagement with an associated brush holder, a spring adapted to urge said push rod in the direction of the brush holder, means for normally locking the push rod against movement, and manually operable unlocking mechanism for releasing the push rod.

22. In a machine of the described class, a lineal series of yielding supports for holding polishing material against rotating pieces of work, of a frame with which said supports are adjustably connected, a series of resiliently actuated devices connected with the frame for urging said supports individually in one direction, means for locking said devices when the supports are in working positions predetermined by the requirements of the work, and means for manually effecting oscillatory adjustments of the frame to regulate the resistance of said supports to pressure of the work.

23. In a machine of the described class, the combination with a suitable base provided with supporting slides and cross slides, of a set of arouate standards mounted upon the cross slides for forward and back adjustment, said cross slides being obliquely disposed for movement of the standards radially with reference to their arc of curvature, said standards being also pivotally adjustable with reference to the obliquely positioned cross slides for swinging movement in a plane which includes their arc of curvature.

24. In a machine of the described class, the combination with a revoluble main work carrier, of a support for polishing material having a series of pivotally mounted resiliently yielding devices for holding polishing material in contact with rotary work, of mechanism for swinging such devices upon their pivotal support, and carried by said support an adjustable work holder, a set of gauge fingers against which work may be con- ,veyed by the auxiliary work holder, and conneetions between each gauge finger and one of said mechanisms for positioning associated polishing material supports with reference to said revoluble main work carrier in correspondence with the contour of the portion of the workon the auxiliary support and in contact. V 25. In a machine of the described class, the combination with supporting standards, of an oscillatoryshaft supported thereby, a series of divider plates secured to said shaft, frame bars with which the gauge finger is -secured to the divider plates and spanning the r is spaces between them, means for yieldingly holding polishing material against pieces of work, pivotal supports for said holding means associated with said divider plates, and frame bars, and adjustable means associated with the frame bars and cooperative Witha piece of work for predetermining pressure of the polishing materialupon the work. v '26.'In a machine of thedescribed class, the

- combination'with polishing materials arranged in ing the individual adjusting means for effecting lineal series, of -means' for regulating the pressure of thepolishing materials upon pieces of rotating work, a lever for positioning the regulating' means to efiect a common adjustment of the polishing materials, normally. inoperative means for eiTecting individual adjustments of said pol- :ishing materials, and anauxiliary lever associated with the first'mentioned lever for releas- V ly vary the pressure of its associated series of said polishing materials'upon the Work.."

1 V 28. In a machine of. the described class, the

combination with plural series 01" supports for polishing materials, means for adjusting said supports in each series to simultaneously Vary the position of the polishing materialsrin that series, auxiliary means for varying the'position of individual polishing materials in each series,

and linkage extending from one series to the next 'and connecting the individual adjusting means in one series withcorresponding adjusting means in the other series, whereby such individual adjustments will efiect corresponding adjustments in each series;

29. In a machine. 'of the described class'jthe combination withplural series 'of supports for polishing materials, means for adjusting said sup-' ports in ,each'series to simultaneously vary the position'of the polishing materials in that series, auxiliary means for varying the position of individual polishing materials in each series, and linkage exten-ding'from one series to the next and ccnnecting'the individual adjusting means in one serles'with corresponding adjusting means in the other serieswhereby such individual adjustments will effect corresponding adjustmentsin each'series, together with auxiliary means for individually adjusting the polishing materials in one'series independently of those in the other series.

30. In' a machine of the describedclass, the

combination with plural'series of polishing materials, of means for simultaneously varying the position of the polishing materials in one series;

auxiliary means for independently varyingthe position of the polishing materials insaid series,

and linkage associated with said last mentioned positioning means for transmitting motion to the corresponding positioning means in each .of the other series. i r

31. In a machine of the described class, the

combination with plural series of polishing materials, of means for simultaneously varying the position of the polishing materials in one series,

auxiliary means for independently varying the position of the polishing ni'aterials in said series, linkage associated With said last mentioned posi tioning means for transmitting motion] to the corresponding positioning means in each of the other series, and means for utilizing a piece of work to independently position each of said polishing materials for operation. upon such work under predetermined pressure.

combination with means for yieldingly supporting a lineally arranged series of polishing mate rials in position for contacts with a piece of rotating work at different radial distances from' the axis about which the work rotates, levers for in- I 20' 32. In a machine of the described class, they dividually adjusting the polishing materials to regulate their pressures upon the work, and means for simultaneously varying such pressures as to all poiishing materials in the series.

33. Ina machine of'the described class, the

combination. with multipleseries of lineally arranged polishing materials, of'levers associated" with the polishing materials of one series for individually adjusting the pressure of such mate rials upon the work, corresponding levers in each of the other series linked to said adjusting levers for simultaneous adjustment ofone lever in each" series in correspondence with the movement of one adjusting lever.

In a machine of the described class,ithe combination with multiple series of 'lin'eally ar ranged polishing materials, of levers associated with the polishing materials of, one series for individually adjusting the pressure of such mate rials upon the work, corresponding levers in each l of the other series linked to said adjusting levers for simultaneous adjustment of one lever in each series in 'correspondence with the movement of oneadjusting lever, the links of adjacent levers being intermediately offset and associated inpairs to provide space through which strips of 7 ing material may extend.- V

35'. In a machine'of the described class, the combination with a rotary'work carrying drum, of a setof arcuate standards normally curved in polish- Y arcs generally concentric to the periphery of'the drum, means for independently adjusting the upper end portions of the standards toward and away from the drum independently of the lower portions, and means associated with each of said standard portions for supporting polishing materials in operative relation towork carried by the drum, whereby the polishing materials supported 7 from theupper portions of said standards maybe moved toward and from the work'in correspond ence with the diametrical dimensions of the work. 7 r v V 36. In a machine of the described class, the

combination with a'rotary work carrying'drum,

of a set of standards having adjustable lower portions and upper portions pivotally'adjustable with reference to the lower portions, and polishing devices carried by the upper and lower portions of said standards in positions for contact with work carried by the drum, the polishing devices carried by the upper end portions of the standards beingsupported for swinging adjustment in overhanging relation to the drum.

3'7. In a machine of the described class, a brush holder frame comprising the combination of a series of rods, one of which is pivotally supported at its respective ends and provided with means for looking it in various positions of pivotal adjustment, and apertured plates disposed at intervals along said rods and through which the rods extend, said rods being provided intermediate of said plates with brush holders and brush holder adjusting means.

38. In a machine of the described class, a brush holder frame comprising the combination of a series of rods, one of which is pivotally supported at its respective ends and provided with means for looking it in various positions of pivotal adjustment, and apertured plates disposed at intervals along said rods and through which the rods extend, said rods being provided intermediate of said plates with brush holders and brush holder adjusting means, together with locking devices simultaneously operable from one end of the machine and adapted to secure all of the brush holders in a predetermined position of adjustment.

39. In a machine of the described class, the combination with a rotary work carrying drum, of a set of supports, separately adjustable polishing devices carried by said supports and disposed in multiple lineally extending series for operation at different levels upon work carried by the drum, and means at the opposite side of said supports from that occupied by the work carrying drum for effecting predetermined adjustments of the polishing devices with reference to the contours of different portions of the work to be carried by the drum.

40. In a machine of the described class, the combination with an adjustable standard and a set of oscillatory frames mounted thereon, of a lineal series of polishing means carried by each of said frames, an adjustable support connecting each of said means with its respective frame for individual adjustment thereon, whereby said polishing means may be adjusted for simultaneous contact with pieces of work at varying elevations, and means for locking each of said frames individually in oscillatory adjustment upon said standard, the oscillation of said frames occurring in directions to simultaneously vary the pressure of their respective associated series of polishing means upon the work.

41. In a polishing machine having a rotary Work carrier, the combination with a standard for supporting polishing materials in the path of the work, said standard having arcuate sections pivotally connected with each other and normally curved in correspondence with the path of the rotating work, means for adjusting the upper section toward and from the work by swinging movement upon its pivotal connection with the lower section, and means for locking said upper section in position of such adjustment.

42. In a polishing machine having a rotary work carrier, the combination with a standard for supporting polishing materials in the path of the work, said standard having arcuate sections pivotally connected with each other and normally curved in correspondence with the path of the rotating work, means for adjusting the upper sec-' tion toward and from the work by swinging movement upon its pivotal connection with the lower section, means for locking said upper section in position of such adjustment, a, supporting base for the lower section, and means for adjusting the lower section upon the base in an oblique plane at various distances from the work, both vertically and horizontally, by movement in said plane at a tangent with the line of work travel.

43. The combination with a work carrier, of a support for polishing devices extending substantially parallel with the axis of the work on the carrier, a series of mountings connected with the support, means for adjusting each mounting both longitudinally and transversely of the support, means for separately locking each of the mountings to the support in accordance with its individual adjustment, and means for oscillating the support to simultaneously vary the position of all the mountings in the same direction and to the same extent with reference to the work.

44. The combination with a work carrier, of a support for polishing devices extending substantially parallel with the axis of the work on the carrier, a series of mountings connected with the support, means for adjusting each mounting both longitudinally and transversely of the support, means for separately locking each of the mountings to the support in accordance with its individual adjustment, and means for oscillating the support to simultaneously vary the position of all the mountings in the same direction and to the same extent with reference to the work, together with means for locking the support after any given common adjustment of the independ-.

ently adjustable mountings.

45. In a machine of the described class, the combination with an arcuately movable work support, of a set of standards for supporting polishing materials in an are normally concentric to the path of the work, each of said standards having an arcuate portion corresponding in curvature with said normal arc and another arcuate portion of like curvature pivotally connected end to end with the first mentioned portion and adapted to be swung downwardly over the upper portion of said arcuately movable work support, and means for securing said swinging portion in various positions of swinging adjustment.

CARL J. LIPPOLD.

CERTIFICATE OF CORRECTION. Patent No. 2,119,95h. June 7, 1958.

CARL J. LIPPOLD.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 6, second column, lines 58 and 59, claim 10, strike out the words "pivoted support for polishing material, of the combination with the"; and that the said Letters Patent shouldbe read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed ani sealed this 26th day of July, A. D. 1958,

7 Henry Arsdale, Acting Commissioner of Patents. 

